Update app.py

app.py

@@ -75,8 +75,8 @@ data = loader.load()
 # (If you find that key fields are getting split, consider implementing a custom splitter.)
 from langchain_text_splitters import RecursiveCharacterTextSplitter
 text_splitter = RecursiveCharacterTextSplitter(
-    chunk_size=1700,  
-    chunk_overlap=200,  
+    chunk_size=1600,  
+    chunk_overlap=150,  
     add_start_index=True
 )
 def split_document_with_metadata(document):
@@ -116,7 +116,7 @@ ensemble_retriever = EnsembleRetriever(
         vectorstore.as_retriever(),
         bm25_retriever
     ],
-    weights=[1.0, 0.0]
+    weights=[0.9, 0.1]
 )
 retriever = ensemble_retriever